Wrench



F. DANIELSON. WRENCH.

APPLICATION FILED JUNE 1. 1920.

1,394,539. I Patented Oct. 25, 19210 FHQ.

FRANK DANIELSON, OF CHICAGO, ILLINOIS.

WRENCH.

Application filed June 1,

To all whom it may concern:

Be it known that I, FRANK DANIELSON, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinventeda certain new and useful Improvement in Wrenches, of which thefollowing is a full, clear, concise, and exact description, referencebeing had to the accompanying drawings, formlng a part of thisspecification.

This invention relates to wrenches and has for its object to provide awrench with means whereby it can be readily determined when thetransverse cotter pin openin in a bolt and the slots or openings in acaste lated nut are in alinement.

Prior to this invention, it was necessary, in order to determine whetherthe cotter pin used for locking the nut on the bolt could be inserted,to remove the wrench and probe with the cotter pin to determine whetherthe openings receiving the same were in alinement. This usually had tobe repeated many times thus necessitating the removal and replacement ofthe wrench numerous times. The present invention avoids entirely thenecessity of removing the wrench to determine whether the said openingsare properly alined. This is avoided by providin a transverse opening inthe socket portion of the wrench throu h which a pin can be inserted todetermine whet er the openings are properly alined.

Referring to the drawings igure 1 is an elevational view of wrenchconstructed in accordance with my invention showing the same engaging anut on a bolt;

Fig. 2 is a view partly in section on line.

2-2 of Fig. 1 of the same showing a portion of the handle broken away;and F Fig. 3 is a section on the line 3-3 of 1g. 2. The wrench shown inthe drawings comprises a handle 4 and a jaw 5 secured thereto in anysuitable manner as by a pin 6. The

jaw 5 is in the form of a socket 7 corresponding to the outer surface ofthe nut 8. In the present case the same is shown as being hexagonal.This wrench is particularly adapted for use in applying a nut to a boltthat is locked thereto by a cotter pin (not shown) and for this purposethe bolt 9 is provided with a transverse opening 10 adapted to receivethe cotter pin. The nut 8 is provided with a plurality of pairs of slots11 extending inwardly from one of the ends Specification of LettersPatent.

Patented Oct. 25, 1921. 1920. Serial No. 385,556.

thereof and is what is commonly known as a castellated nut.

In tightening such a nut on a bolt provided with a transverse openingsuch as described it requires considerable manipulatlon with theordinary form of socket wrench to get a pair of slots 11 and the opening10 alined so as to readily insert the cotter pin therethrough. It isnecessary with the ordinary form of wrench to remove the same in orderto try to insert the cotter pin to see if the openings are properlyalined, then if they are not properly alined it is necessary to againapply the wrench to give the nut a slight movement in attempting toaline the openings. This makes it necessary to frequently remove andreplace the wrench on the nut before the nut is in its final positionwhere the cotter pin can be inserted to lock the same.

In the present device the jaw 5 is provided with a transverse opening 13slightly larger than opening 10 extending entirely therethroughdiametrically thereof at the hexagonal portion 7 so located that, thesame would be substantially in line with the slots 11. In using thiswrench when the nut is sufficiently tightened the cotter pin is insertedinto the opening 13 to determine whether the slots 11 and transverseopening 10 are in alinement. If this is not the case the nut can beturned slowly so as to bring the slots 11 and opening 10 in alinementand at the same time the cotter pin can be used to probe for the slotsand opening through the opening 13 to determine whether the same are inalinement, and as soon as it is possible to push the cotter pin entirelythrough from one end of the opening 13 to the other thereof the nut willbe in its final position. This makes it possible to turn the nut on thebolt to its final position without removing the wrench to determinewhether the cotter pin can be inserted and removes the objection to theold type of wrench which had to be frequently removed and replaced inorder to properly aline the slots 11 and opening 10.

Having thus described the preferred form of my invention I desire tohave it understood that I do not intend to limit myself to the exactdetails shown and described except as defined in the following claims: 7

1. The combination with a bolt provided with a transverse opening and anut provided with paired openings adapted to be alined therewith, of asocket wrench provided with means to indicate when one of said pairs ofopenings is alined with the opening in said bolt.

2. The combination with a blot provided with a transverse opening and anut provided with paired openings adapted to be alined therewith, of asocket wrench provided with an opening to indicate when one of saidpairs of openings is alined with the opening in said bolt by theinsertion of a. pin therein.

3. A socket wrench comprising a handle and a jaw portion provided with asocket adapted to receive a nut therein, and having a transverse openingthrough the socket 16 In witness whereof, I hereunto subscribe 20 myname this 4th day of May, A. D. 1920. FRANK DANIELSON.

